# entity模块，用于定义
demo_str = 'hello world!'
demo_dict = {
    '姓名': '张三',
    '身高':180
}
#区块链211班同学身高
student_height_list = [177,166,171,157,172,184,170,181,156,169,168,160,167,173,155,176,164,179,161,160,161,170,181]
